Why can't I get facebook with Firefox now when I could before?

I always used Firefox as my browser. Now I can't open Facebook nor does the weather channel page load correctly. I uninstalled Mozilla Firefox and then reinstalled it but it didn't fix it. I can get FB when I use Internet Explorer.

I always used Firefox as my browser. Now I can't open Facebook nor does the weather channel page load correctly. I uninstalled Mozilla Firefox and then reinstalled it but it didn't fix it. I can get FB when I use Internet Explorer.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

Do NOT click the Reset button on the Safe mode start window or otherwise make changes.

and eventually I can access Facebook normally.
I hope this work on your case.

Try enter Facebook IP in address bar (220.250.64.24)
In my case it will redirect to http://nfdnserror7.wo.com.cn:8080/issueunziped/nf130726/self0.jsp?UserUrl=220.250.64.24&loc=
and eventually I can access Facebook normally.
I hope this work on your case.